Machine gun



Aug. 2, 1932.

L. DAVIS, JR

MACHINE GUN Filed May 29. 1931 12 Sheets-Sheet l NNN NWN

Aug. 2, 1932. 1 DAvls, JR

MACHINE GUN Filed May 29. 1951 .12 Sheets-Sheet 2 L. DAVIS, JR

MACHINE GUN Aug. 2, 1932.

FiledMay 29, 1931 12 Sheets-Sheet 3 L Uil/5 DA V/ L. DAVIS, JR

MACHINE GUN Aug. 2, 1932.

Filed May 29. 1951 12 Sheets-Sheet 4 L. DAVIS, JR

MACHINE GUN Aug. 2, 1932.

Filed May 29,- 1931 12 Sheets-Sheet 5 3mm/H2011 0015 DAV/.52176 dbbozmqL. DAVIS, JR

Aug. 2, 1932.

MACHINE GUN Filed May 29, 1931 12 Sheets-Sheet 7 L. DAVIS, JR

MACHINE GUN Aug. 2, 1932.

Filed May 29, 1951 12 Sheets-Sheet 8 L. DAVIS. JR

MACHINE GUN Aug. 2, 1932.

Filed May 29, 1951' 12' Sheets-Sheet 9 ASM QN 5SH @n w NN NEN NnmN Nm.www

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#NN A@ l.. DAVIS, JR

Aug. 2, 1932.

MACHINE GUN NWN o kwh o h Y www fr l: w QN. NNN @M www S1 a\\ o LQQN Qmm wm m1 www Q NNNNN .Q51

L. DAVIS, .JR

MACHINE GUN Aug. 2, 1932.

Filed May 29, 1951 12 Sheets-Sheet 11 Zin/vento@ l. 0015 DAV/Jf.

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L. DAVIS. JR

MAcmNE GUN Aug. 2, 1932.

Filed May 29, 1931 12 Sheets-Sheet 12 :g1/wanton au/5 DA v/5,Jr

Patented Aug. 2, 1932 DAVIS, JR., OF GALVSTON, TEXAS, ASSGNOR 0FONE-EIGHTH T0 DELBERT t HULETT AND A. J. STUCKEY, BOTH OF GALVESTON,TEXAS MACHINE GUN Application filed May 29,

This invention relates to lire arms, and

more particularly to a rapid fire gun capable of use for bot-h groundworlrand on aeroplanes and the like. 4

One of the primary objects of my invention is the `provision of a novelmachine gun, which is so constructed that a maximum amount ofprojectiles can be fired therefrom per minute without danger of the gunvjamming or clogging and without danger ofthe gun overheating.

Another salient objectief my invention is the provision of positivemeans for loading 'the revolving cylinder of the gun, whereby thecartridges will be fed into the cylink der in ayproper step by stepmovement ,and into the proper chamber thereof during the timed rotationof said cylinder.

Another important object of my invention isthe provision of positivemeans for eject` ing each shell from a chamber of the cylinder at Atheproper time, whereby all danger of a shell sticking in a chamber of thecyl- "inder afterthe firing of a cartridge is absolutcly precluded.

4Afurther and important object of my invention is the provision of anovel firing i and oading operation of the cylinder.

` A further object of my invention is the provision `of novel means forcooling the gun while the same is in opera tion, said means embodying aVwater jacket surrounding the barrel of the gun with a positive meansfor circulating the water through the acket, said cooling means also.embodying a drip arrangement whereby the circulating water can 1931.Serial No. 541,039.

flow around the rotating cylinder so as to insure the proper coolingthereof and to prevent the distortion thereof under heat.

A further object of my invention is the provision ofmeans whereby all ofthe operating parts can be actuated from a common operating or masterlever, with means for actuating the lever from a prime mover, such as anelectric motor, means being also provided for permitting the operationof the gun by hand in case the prime mover should be rendered useiessfrom any cause.

A further object of my invention is the provision of means forautomatically swinging the gun both in a horizontal and vertical planefrom the prime mover during the liring thereof, whereby the gun can beoperated entirely automatically for covering a certain portion of abattle field, means being provided whereby the automatic swingingmechanism for the gun can be disconnected, solthat the gun can be sitedor trainedby hand.

A still further object of my invention is to provide an improved machinegun of the above` character, which will be durable and efficient in use,one that will be comparatively simple and easy to manufacture, and onewhich can be placed upon the market at a reasonable cost.

lVith these and other objects in view, the invention consists in thenovel construction, arrangement and formation of parts, as will behereinafter more specifically described, claimed, and illustrated in theaccompanying drawings, in which drawings Figure lis a side elevation ofmy improved machine gun, the casing or housing for the operating partsof the gun being shown removed.

Figure 2 is a detail vertical section taken on the line 2-2 of Figure 1looking in the direction of the arrows illustrating the support- Vingframe or tripod for the machine gun and the means for operating theactuating parts of the gan from a prime mover.

Figure r8 is a side elevation of the gun showing the opposite sidethereof from Figure l.

Figure 4 is an enlarged fragmentary side elevation of the gun lookingfrom the left Y hand side thereof and illustrating the ej ectin g inlever beinfr shown broken awa to illus.

g is

trate other working parts of the gun.

VFigure Ga is a fragmentary detail side elevation of a portion of theejecting operating mechanism,V illustrating the position of these partsprior to the return of the ejecting rod to its normal position.

Figure 7 is an enlargedfragmentary central longitudinal section throughthe gun illustrating the position of the parts immediately before thering of the cartridge and illustrating more particularly the main ormaster operating lever of the gun.

Figure 8 ,isV a transverse sectional view through the gun taken on theline 8-8 of Figure 7 looking in the direction of the arrows andillustrating the mechanism for revolving the cylinder from the main ormaster operating lever.

Figure 9 is a horizontal section through the gun looking toward the basethereof and illustrating themeans of mounting the gun on the base andshowing a part of the mechanism for swinging the gun in ahorizontalplane during the firing thereof.

Figure 10 is an enlarged fragmentary vertical section illustrating themeans for mounting the gun on the base and the main operating means. l

Figure 11 is an enlarged fragmentary side elevation of the gunlookingfrom the right hand side thereof, the position of the partscorresponding to Figures 5 and 6, the pitmanV rod being on its downstroke.

Figure 11a is a view similar to Figure 11 showing parts thereof brokenaway and in section, to more clearly illustrate the means for feedingthe cartridges into the revolving cylinder.

Figure 12 is an enlarged fragmentary side elevation of the gun showingthe right hand cartridge loading and feeding mechanismV takensubstantially on the line 14414 of Figure 12. I

Figure 15 is an enlarged detail perspective view illustrating a part ofthe cartridge loading and feeding mechanism, and showing moreparticularly the means for stoppingthe feeding of the cartridges duringthe firing of the gun. Y

Figurev 16 is an enlarged fragmentary side elevational view of thecartridge loadingand feeding mechanism showing the position of the partsas illustrated in Figures 7 and 11.

Figure 17 is an enlarged fragmentary side elevational view of thecartridge loading and feeding mechanism showing the position of theparts as illustrated in Figures 12 and 12a.

Figure 18 is an enlarged fragmentary detail Ysectional view illustratingthe means for controlling the flow of cartridges from the supply hopperto the feed hopper.

Figure 19 is a horizontal section taken on the line V19-19 ofFigure 18looking in the direction of the arrows illustrating the mechanism forcontrolling the flow of cartridges from the feed hopper to the feed orguide tracks.

Figure 20 is a vertical section taken on the line 20-20 of Figure 18illustrating the mechanism for controlling-the ow ef cartridges frcm thesupply hopper into the Wfeed hopper. Y Y V y Y Figure 21 is a viewsimilar to Figure 20 showing the position of the ,parts after acartridge has been released from the supply hopper into' the feedhopper. Y I Figure 22 is a view similar to Figure 19 and taken on theline 22-22 of Figure V21 looking in the direction of the arrows.

'Figure 23 is Yan enlarged detail perspective view of tl e releaseandholding latch for the operating lever of the cartridgefeed 'mechanismlReferring to the drawings in deta`l, wher in similar referencecharacters designate corresponding parts throughout the several views,the letter A generally indicates my improved gun which comprises asupporting stand B or mount, on which is mounted the gun proper or headC. Y

' The gun proper or head C embodies a novel cartridge supply mechanismD, a cartridge feeding mechanism E, a cartridge firing mechanism F,andthe shell ejecting mechanism G.

The gun also embodies a novel locking mechanism Hfor the rotatingcylinder of the gun operating in conjunction with the loading, firing,and ej ecting mechanism E, F, and G; and also novel means for swingingthe gun proper vor head C automatically from the mainY operatingmechanism, forming a ypart of the'gun mount, said swinging mechanismbeing indicated by the letter I, and a novel cooling mechanism J.V

The manner in which the gun proper or ico . tion, and that the gunproper or head C can be mounted in any desired way on an aero- 1 planeor other moving vehicle, to obtain the best advantage therefrom.

As shown the base or mount B comprises a pair of spaced parallel bars towhich are` secured the rear depending legs 26, and

the front forwardly eictending` leg 27. The

i frontV leg 27 can be provided with a foot 28 stand can be made in anyother desired manv and the rear legs 26 can be connected together by` across strap or brace 29. This base or ner.` Adjacent to the front of thebase or mount is arranged a pair of transversely aligned trunnions 30,which receive the transverse pivot shafts 3l on which are mounted y thevdepending triangular shaped swinging supporting plates 32, which arearranged in spaced parallel relation. It is to be noted that the pivotshafts 3l extend through the plates 32 intermediate the upper and lowerends thereof, and that the upper ends of the plates have bolted theretoone plate section 34: of a turn table structure 33. The compan- '1 ionturn table plate 35 is rigidly secured in any preferred way to the gunproper or head C. `Extending axially through the turn table plates 34and 35 is the pitman rod 36, which forms apart of the main or masteroperating mechanism, as will be later described. It is to be noted,however, from the description so far, that the gun proper orhead i `(lcan be swung in a horizontal path on the turn table plates 34 and 35using the pitinan rod 36as an axis and also in a vertical plane usingthe shafts 3l as an aXis.

Referring again to the main operatingr parts of the gun, it is to benoted that the del pending plates 32 support a rotatable transverselyextending crank shaft 37 to which the pitman rod 36 is connected. .Thisshaft is adapted to be operated mechanically from any suitable primemover, and I have show n an electric motor 38 for this purpose. Thiselectric motor is bolted directlyto one of the` depending plates 32 soas to swing therewith and the armature shaft 39 thereof h as keyed orotherwise secured thereto a pinion 40 Y which meshes with a relativelylarge gear'l y rotatably mounted on a stub shaft 42 carried by one sideplate 32. This gear l1 in turn meshes with a smaller gear 43, keyed orother wise secured to thecrank shaft .37. Thus it can b-e seen that thecrankshaft 37 and its pitman 3.6 can be operated mechanically.

Means can also be provided for disconnecting the motor 38 from the crankshaft, so that the crank shaft can be operated by hand in cases ofnecessity, where the motor isrendered inoperative from any purpose. Ahand crank all can be connected to the crank shaft 37 to facilitate therotation of said crank shaft. The means for swinging the gun proper orhead C on the gun mount B will be later described.

The gun proper or head C includes a rigid frame or stock 50, to which isconnected the upper turn table or plate 35. This rigid frame hasconnected therewith and extending forwardly therefrom the gun barrel 51which can be rifled, if preferred. The forward end of the barrel 51 canalso be provided with any preferred, type ofn sight 52. DirectlyV inrear of the barrel 5l is arranged therotatable cylinder 53 havingextending axially `therethrough the supporting shaft 54 suitably mountedwithin `the gun frame. This cylinder 53 is provided with an annular rowof chambers 55 which are adapted to be brought into successiveregistration with the barrel 51.

' Extending longitudinally of the gun proper C is the masteroperatinglever 56 which is rockably mounted intermediate its ends on a suitablesupporting pivot 57 carried by the frame of the head. The forward end ofthe master operating lever terminates adjacent to the rotatable cylinder53 and forms means for operating the cylinder as will be laterdescribed. Tlie upper end of the pitinan rod 36 extends into the frameof the gun proper or head C and is provided with a yoke 58, whichreceives the adjacent end of the inaster operating lever 56. A pivot pin59 connects the yoke with the master operating lever, and thus thislever will be rocked during thereciprocation of the pitmaii rod 36.Pivotally connected, by means of a pivot pin 60,l with the masteroperating lever 56 forwardly of the pitnian rod 36, is an operatinglever 6l, for rotating the cylinder 53 during the actuation of the gun.This operating lever 6l and the means for operating the cylinder is moreclearly illustrated in Figure 8 of thedrawings, and itis to be notedthat the operating lever 6l is twisted intermediate its ends and thatthe upper endthereof is bifurcated to provide a pair of spaced lingers62 and 63. The outer linger 62 constitutes a guide, linger and isprovided with a laterally extending guide lug 64 for engaging the outersurface Y of the cylinder 53. The inner linger 63 constitutes anoperatinglinger and `is provided with a forwardly directed operating lug65 which is adapted to engage the inner face of the cylinder 53 and thewalls of the chambers 55 to bring about the rotation 0f the saidcylinder. A contractile coil spring 66 is connected with the operatinglever 61 at one of its ends and at its other end is connected to theframe 50 of the gun proper or head C. Thus it is to be not-cd that theguide lug is normally urged into engagement with the outer` face of thecylinder and thus normally holds the guide linger in engagement with theouter surface ofthe gun and thus the operating linger in proper positionrelative to the chambers 55. Upon the upstrolre of the pitman rod 36 thelever at its forward end will be moved upwardly, which will swing theoperating lever 6l upwardly, moving the cylinder 53 a distance equal tothe distance between a pairof chambers 55, so that a new chamber will bebrought into registration with the barrel 51 and another chamber fromout of registration with the barrel. V ln the downstroke of the pitmanrod the forward end of the master lever 56 will bebrought Adownwardlyand the operatin g lever 6l will swing on its pivot 60 allowing theingerto move from out of .engagement with the wall of the chamber andthus slide over the rear face of the cylinder into proper position forengagement with the next adjacent chamber.

rlhe feeding mechanism for the cartridges, generally indica-ted by thereference character E is located on the right hand side of the gun,

and the right hand side of Vthe cylinder 53, while the ejectingmechanism for the cartridge shells, generally indicated Vby thereference character G is located on the left hand side of the gun. Asstated, the cartridge feeding mechanism and the cartridge ejectingmechanism operate while the cylinder is held stationary during thefiring of a cartridge.

rThe cartridge feeding mechanism lil forms one of the salient parts ofmy invention, and the cartridges are handled inv a novel manner topermit the maximum number of rounds to be fed to the cylinder'in theshortest space of time and to properly time the delivery of saidcartridges to the proper chambers of the gun. rlhis cartridge feedingmechanism comprises a supply mechanismrl), which includes the supplyhopper in which the cartridges are initially placed. This supply hopper70 is held in position above the gun proper by means of a suitablesupporting bracket 7l, as clearly shown in the drawings. The hopperinclines downwardlyand forwardly and terminates in a supply chuteor tube7 2, which leads into a control hopper 7 3. The cartridges from thecontrol hopper 73 are fed in proper timed' relation to the cartridgefeeding mechanism, but it should be understood that the cartridges aresimply poured into the supply hopper 70 regardless of their position andthat the cartridges are handled in a novel manner by the cartridgefeeding mechanism to insure the proper feeding thereof withtheprojectile end'first into the chambers of the cylinder.

The tube or supplychute 7 2, as stated, eX- tends into the controlhopper 7 3 and has its lower end opened as at 74 and provided with aninclined cartridge guide lip 7 5. The control hopper 7 3 is held inplace onthe gun by a suitable bracket 76 below and forwardly ofthesupply hopper 70. vrMeans is'pro'- vided for preventing theY too rapidflow ofV i the cartridges from the tube or supply chute 72 into thecontrol hopper and this means comprises a swinging gate 7 7 of arcuateform. The gate 77 is hinged at its upper end, as at 7 8 toA one sidewall of the control hopper and in its normal position, the gate extendsunderthe open side 74 of the supply chute and in engagement with the lipwhereby the cartridges will be prevented from falling intoV the controlhopper. It is to be understood that the opening 74k is Vof a size as topermitthedropping of one cartridge only at a time therethrough.

In order Vto further insure the proper dropping of the Vcartridges oneat atime from the supply mechanism D tothe feed mechanism E, l providebelow the gate 77, a swinging )aw 7 9, which functions or cooperateswith astationary jawSO. The jaw 80 is arranged Von one side ofthecontrol hopper and theV swinging jaw 7 9 is arranged on the other sideof the hopper andthe jaw 80 extends below the supply tube er chute 72.The jaw 79 is pivoted intermediate its ends, as at 8l, in the 5 hopper73 and itsv lower end swings toward and away from the stationary jaw 80.The extreme upper end of the 79 above its pivot 8l is provided with anarm 82 which is pivotally connected to a link 83, intermediate the endsthereof. rlhe inner end of the link is piveted as at 84 to the gate 77near its pivot. rlhe jaw ,79 is actuated by a slide plate 85 mounted forsliding movement in the hopper 7 3 at one side of the gate 2:'

and below the pivot point thereof. This slide plate 85 isprovided at itsrear end with a depending attaching foot 86, which is riveted orotherwise secured to a slide track 87,

which is mounted directly 'below the jaws 79 and 80. rlhis slide track87V is provided with a longitudinal slot 8,8 which is enlarge-dintermediate Vits ends, as at 89. The slide plate 85 is provided with aninclined surface forming a cam trip 90, and it is obvious that as theslide and the slide track is reciprocated backY and forth, by means,which will belater described, that the cam surface 'will strike the jaw79 and swing the'same on its pivot and hold the same in aclosedposition. A contractile coil spring 9l`is connected to the upper end ofthelink 83 and to a rigid portion of theV control hopper and this springfunctions to normally hold the liaw in an open position as Vshown inFigurey 2l. As the j aw 79 is swung to an open position and to a closedposition the gate 77 is actuated therewith and by referring to Figure20, it can be seen that when the jaw 79 is in an open Vposition the gate77 isV in its closed position. Thus L proper timed relation in a novelmanner from the main operating mechanism as will be later described, butit is to be noted lthat at the present time, that the forward end of theslide track 87 carries a hook 92, the forward end of which is providedwith a curved face i 92 for cooperation with certain other parts,

. as will be later set forth, as stated above.

i contractile ceil spring 93is connected with the rear end of the slidetrack 87 and to the frame of thegun head and normally holds the slideplate in a rearward position with the narrow portion of the slotlowerniost, so that 1 the` parts will normally assume a position shownin Figures 19 and 20. When the slide .plate is moved forwardly againstthe A l tension of the spring 98, the widest portion 90 of the` slot 88will be brought below the control 4hopper, which will permit the base ofi the cartridge'to fall through the slot, so that thecartridge can bedelivered to the cartridge feed mechanism E, which will now be describedin detail.

:.35 headand these tracks extends under the coni The cartridge `feedingmechanism E embodies apair of spacedguide tracks 95, which are 'rigidlysecured teV the frame of the gun i i trol hopper in proper spacedrelation therei and 18.

to and rearwardly thereof, as clearly shown in Figures 11a and 13. Thetracks 95 are spaced a sufficient distance apart to allow the weightedend of the cartridge to fall between the same but to hold the base endthereof,so that the cartridge will be held in a suspended position shownin Figures 11a The extreme rear ends of the tracks 95 arecutout orspaced a further distance apart asindicated by the reference character96 soV that when thecartridges reach the enlarged portion of the trackthe same will be y released from thetrack and fall therefrom.

` The cartridges are gradually worked to the rear portion of the track95 by means of a feed linger 97, which depends from a slide plate 98mounted for reciprocating movement on la stationary guide rod 99 carriedby the gun frame. This guide rod 99 and the slide plate v98 is mountedat one side of the conplate 98.

trol hopper and the feed linger 97eX-` tends between the guide tracks`as shown.

i The feed nger 97 acts in conjunction with the slide track 87 and theplate 85 and in fact the slide track is actuated from the slidePivotally connected with the slide plate 98 and projecting forwardlytherefrom isan operating hook 102, which is `actuated by means whichwill be later set forth. This hook 102 is provided with a rightangularly disposed upstanding arm for engaging the hook 92.

It is to be noted however, that the slide plate and the finger 97 isreciprocated back and forth and that when a bullet or cartridge fallsinto the control hopper between the tracks, that upon rearward movementof the nger the same will engage the cartridge and move the same back onthe track 95 and that upon the return movement of the slide plate thenger 97 will be moved forwardly of the hopper to allow the dropping ofanother bullet or vcartridge between the tracks. This movement iscontinued until the cartridges are gradually fed rearward on the tracksso that a cartridge will be fed one at a time to the enlarged portion 96of the tracks, where a cartridge will fall to certain other operatingmechanism. lVhen the linger 97 is in its extreme forward position, it isobvious that the arm 100 will engage the hook 92 and move the slideplate 85 and the slide track 87 forwardly, which willimove the j aw 79to its closed i position as shown in Figure 21 and the enlarged portion89 of the slide track 87 below the control hopper, whereby the bulletwill be dropped.

A stop finger is swung back and forth in front ofthe enlarged portion 96of the cartridge guide tracks 95, by a novel operating mechanism, whichwill now be described. It is to be noted that this stop linger dependsfrom a lever 10G mounted above and at one side of the said cartridgeguide tracks 95 and this lever is rockably mounted intermediate its'endsas at 107 on the forward end of a bar 108, which carries a guide 109received on the stationary guide rod 99. The forward end of the lever106 is pivotally connected as at 110 to the upstanding ear 111 formed onan operating lever112, which extends forwardly toward the front of thegun. This operating lever 112 terminates in a hook 113, for a purconnected to the plate 108. This spring normally functions to hold thenose end of the operating lever 112 in a raised position.V

Pivotally connected to the plate 108 and eX tending rearwardly therefromis the operating bar 118, the lower face of which can be provided withone or more teeth 119. These teeth are engaged by the laterallyextending dog formed onthe upper end of a swinging lever 121, whichlever is rockably mounted intermediate its` ends on `a pivot 122carswinging movement on a swinging link 134, Y and that the rear end ofthe bar has connected y thereto acontractile coil spring 135, thelowried by the frame, of the' gun head. The lever 121 is operatedv byalink 123, which is pivotally connected to the lower end of the lever bymeans of a pivot pin 124. rlhis link 123v extends forwardly and has itsforward end angled upwardly and pivotally connected as at 125 to thethree arm lever 126. The lever 126 is rockably mounted Vvon a framecarried pivot pin 127, approximately at the point of connection of thethree arms thereof. These arms are indicated respectively bythe numerals128, 129, and 130. rlhe arms 128 and 129 are in longitudinal alignment,while the arm 130 extends forwardly and at right angles thereto and ispivotallyV connected as at 131 to the extreme forward end of the masteroperating lever 56. Thus upon movement of the master operating lever 56the three arm lever 126 will be swung on its pivot 127 causing theswinging` of the swinging lever 121 through the medium of the link 123.V.The

dog 120 -formed on the swinging lever 121 also actuates an operating rod132 (see Figure llaofthe drawings) the dog 120 engag ing a notch 133formed in saidV operating rod. 1t is to be noted at this point that therear endof the operating rod 132 is mounted for er end of which isrigidly connected toa swinging dog 136, the forward end of'which isurged into engagement with a ratchet wheel 137, whichrforms a part ofthe gun head swinging mechanism, as will be later set forthtsee Figure1-of the drawings). The rear end of the slide bar 118 is supported forswinging movement by means of a link 138 mounted on a suitable pivot139'carried by a part of the gun frame or head. 1 I

Referring again tothe operation ofthe stop finger 105, it is to be notedthat the plate 108 (see Figures 15, 16 and 17) carries a pivoted detent140y having a depending finger 141 arranged in the path of a stop 142car.- riedby the frame of V'the'gun AThe upper edge of the detent 140 isprovided with a laterally Vextending latch'inger 143, which,V normallyengages overthe nose 115 of the swinginglever 112, which prevents theswing ing of thisllever and the consequentraising ofA the stopfinger105. `This detent is normally held in al lowered position by meansof acontractile coil spring 144, which is con- '3 nected with saiddetent and with a frame partof the gun.

Referring again to the operating mechanism for the swinging finger andthe other .cooperating parts, it 1s to be noted that the frame of thegun, adjacent to thefforward part thereof (see Figures 11-and'11a) hasrockably mounted thereon a throw lever 147.

This lever is mounted intermediateits endsv 'toa pivot pin 148 and hasthe lower end there.- of: operatively connected to the arm 129 of Y 325.vthe hook 92 and consequently when the slide arranged in the path ofthehooks 102V and .W hen the cartridges have been fed backward against thestop finger 105, the swing'- ing lever 121 will be swung on its pivotthrough the medium of the operating link 123, which will move the rackbar 118 rearward and the depending finger 141 of the detent 140 againstthe stop 142 raising the latch lug 143 above the nose 115 of the lever112.V

rl`his will allow the swinging ofthe lever 112 on its pivot 114 underthe influence of its spring 117. rllhe swinging of the lever 112 willmove the nose end thereof 113 in the path of the lateral lug or linger150 formed on the lever 148. Simultaneous with this movement the finger105 will Vbe lifted Y due to its connectionwith the' link 106 as clearlyshown in Figures 16 and 17. The cartridges can now be moved back by thefeed finger 97 until'a cartridgerides in the enlarged portion of theguide track 95 where the same is allowed to drop. of the cartridgesthrough the enlarged portion 96 of the track 95 is facilitated andinsured by means of a swinging tap plate 151, mounted on the track 95directly above the enlarged portion thereof. It can be-seen that theswinging Vtap* plate 151 is provided'with an ear "152`the v'upper end ofwhich has pi'v otally connectedth-ereto the forward end of the rod 132Vwhich is actuated from the swinging lever 121, as heretofore broughtout. Thus simultaneouslyV with the backward movement of the bar 118 andthe raicing of the stop finger 105 the tap plate 151 Vwill beraised,.but that upon initial start forward of the plate 132 the tapplate willy move downward forcing the cartridge through. the enlargedportion of the track.

The Vmovement 1 e'lhe finger 150 onV the lever 147Vwill catch ,A

and the flow of cartridges from the control Y hopper 73, aspreviously,described.

Mounted on the Y gun headV forwardly of the hook 92 is an inclined stop.plate or shoe This shoe 325-is arranged in the path of plate YV85 hasbeen brought forwardly the hook 92 will'be raised by said plate 325allowing'the quick release of the slide plate and as sociated parts fromhook 102,`so as to allow the'rearward movement of the plate 85 underinfluence of its spring 93 and operating mechanism. A resilient'dog 326is connected with track slide 98 and the hooked end of` this dog 326normallyengages the upright e 100 of the hooki102 for holding the samein a raised position.v However, when the track! slid-e 98` movesrearwardly this dog 326 is moved from out of engagement with the hook,102, by the contactingof the dog 326 with `in r-earof the cylinder 53and is in alignment with a chamber 54 `of the cylinder at "i the timetheicylinder is held stationary during the loading, firing, and shellejecting ope eration. `The guide bok structure 153 opens into the tube157; Thecartridge then falls from the tracks into the box 153 on areciprocating feed control finger 165. This finger moves back and forthabove the entrance slot 166 of the cartridge feed tube 157.

i ingoperating lever 168, mounted at its `lower i end as at 169 on theframe of the gun. A laterally extendingjarm 170 which is formed zoblithe upper end of the lever 168 can have pivotally connected thereto anoperating link 171 which extends forwardly and is pivotally connected asat`172 to a main operating rod 173, which is pivoted as at 17-1 to thethree `armlever 126. `Thus it is to be noted that e with the swinging oftheV three arm lever 126 the sridefin'ger165 is operated and that the isame operates in conjunction with the cartridge :turning mechanism, feedmechanism and the like. 1n order `to guide the rod 173 i swingingmovement an arm 161 is rockably nio'uyntedas at 162 onI the frame of thegun of the rod 173. e

A plunger 178 isreciprocately mounted in the cartridge feed chute 157and is moved head and is" connected as at 164 to the rear end `back andforth so as to slide the cartridge in the chute in. proper timedrelation into 'a i chamber 511 ofthe cylinder 53 at the time thecylinder is held` stationary. This plunger 17 is provided with adepending bracket 176 I ".fto which" is pivotally connected a link 177ena frame carriedpivot 189.` Directly above the pivot the lever 179 haspivotally con`-- which entends `forwardly therefrom and which is inturnpivotally` connected as at `178-`to the un er end of a swinging lever179.

A D b Thisswinging lever 179 is rockably mounted nected theretoanoperating link 181. c This link'181 is in turn pivotally connected tothe 'ent-reine lower `end of the three arm lever 126,as indica-ted bythe reference characterA 1t Vis therefore to be notedjthat the plungerrod 175 `also functions indirect ac- The rearend `of this slidellingeri165 is pivotally connected aus at 167 to the swingcordance withthe other part of the cartridge feed mechanism.

As the cartridges are fed` into the chambers of the cylinder 53, thecylinder is rotated in a step by step motion previously described so asto bring a loaded chamber in registration with the barrel 51 of the gun,where the cartridge is tired by the novel liring mechanism F, which willnow be described The firing mechanism F comprises the reciprocatingfiring pin mounted in suitable guides 186 forming a part of the gundirectly in rear of the rotating cylinder 53. This firing pin isnormally held rearward of the cylinder 53 by means of a light expansioncoil spring 187 which engages one of the guides 186 at one end and acollar 188 on the firing pin at its oppositeend. The firing pin extendsbeyond the rearmost bracket 186 and in the path of the firing hammer 190which is in the nature of an elongated reciprocating rod. This hammer190 is mounted in suitable guides carried by the frame of the gun and isprovided with a cross pin 191 which is engaged by the upper yoke end 192of the firing lever 193. This firing lever 193 is rockably mountedadjacent to its lower end on a suitable pivot pin 194 and the extremelower end of the firing lever is engaged by a heavy contractile coilspring 195. This coil spring 195 functions to urge the hammer intoengagement with the firing pin for forcibly moving the same into contactwith thecar-V tridge which is to be fired. The extreme re( r end of thehammer is provided with a right angled arm 196 which is normally engagedand held bythe nose, end 197 of the trigger 198. This trigger 198 isrockably mounted leer as at 199 intermediate its ends on a swinging ircsetlever 200. The nose end of the trigger is held down toward and inengagement with the angled arm 196 of the hammer by means of a lightcontractile coil spring 201. The

` reset lever 200 is rockably mounted intermediate its ends as at 202 ona. part of the frame of the gun head and the extreme lower end of thelever has pivotally connected thereto, as at 203 the forwardly extendingoperating link 204. This link at its forward end is pivoted as at 205 tothe depending rock lever 206, which is suspended for swinging movementat its upper end from the frame of the gun. The extremelower end of thelever has pivotally connected thereto the main op- .f

erating link 17.3 previously mentioned in connection with thecartridgefeeding mecha.- nism.VV It is to be noted that this main operating link173 is actuated from the three armed lever 126 and thus through theoperat- Le* ing of the three armed lever the reset lever 200 will berocked back and forth so as to carry the trigger therewith, for apurpose,

which will be more clearly set forth.

Novel means is provided for swinging the Y lever 209, which is rockablymounted interpart of the frame.

trigger on itsv pivot 199 so as to move thenoseV This trip arm 207 ispivoted at its lower end,

as at 207 on the rear end of a double armed mediate its ends on a pivot210 carried by a The forward end of the lever 209 has pivotallyconnected thereto as at 211 an upright bar 212, having formed thereon orsecured thereto the laterally eX- tending lug 215. The upper end of theupstanding bar 212 is normally urged forwardly by means of a contractilecoil spring 213. rEhe forward. edge of the upright bar 21.2 adjacent toits lower endis provided with a notch 214 into which is received atcertain times a. cross pin 215 carried by the rear end of the masteroperating lever 56. lt is thus obvious that upon initial upward movementof the master operating lever at its rear end that the pin 215 riding inthe notch 214 `will-V lift the uprightrod 212 and swing the rear end ofthe double ended lever 209 down,

which in turn will pull down on the trip armV 207`allowing the releaseof the trigger 198,

' whereby the nose end '197 Vthereof .will ride upward and out ofengagement with the lat,- eral arm 196 on the hammer 190. The laterallylextending lug 113 carried by the up.- right bar is normally fitted in anotch 2 15 formed in the nose end 217 of a swinging lever 218 forming apart of a quick release vmechanism now to be described..y The rearY iend of the release arm 218 is-pivotally mounted on a supporting arm 219rigidly connected with a frame of the gun. The forward end ofthis lever220 is yoked or bifurcated, as at 222 for receiving the pin 215,. rlherelease lever 218 slides through a guide 223 carried by the frame ofthe' gun and is normally urged downward toward the lug 215 and towardthe lever 220 byrmeans of a contractile coil spring 224.

immediately after the firing of the gun the trigger starts to moveforwardly under the swinging movement of the' reset lever 200 andsynchronous with this movement the rear end of the master lever startsto raise which swings the lever 220.,.on its pivot, which movement istransmitted to the nose ond of the top lever 218 and the notch 216swings out from .the lug 215 of the upright vgun frame. lever isconnected Vto the forward end ofthe rock lever 220 pivotally securedin-V termediate its ends, as at 221 on a part of theV .rear end strokeofthe master lever 56 the reset lever 220 is swungrearwardly carryingthe trigger 198 therewith and also the hammer 190, resetting these partsand the cross pin 215 ofthe master lever 56 is moved downward swingingthe bottom lever220 of the release mechanism downward and moving thenose end 217 of the upper lever 218 forwardly and over the lug 215 ofthe upright bar 212 resetting and locking .the parts. The gun is thenagain ready to be fired.

Operating in timed conjunction with the firing mechanism isthe cartridgeshell ejecting mechanismv G, which will now be described.V y

The cartridge shell ejecting mechanism G comprises a shell ejectingrod230 mounted for reciprocatory movement in suitable guides on the gunframe. The .forward end of the shell ejecting4 rod can be tapered as at231 to facilitate the entrance'of the same into a chamber of thecylinderr and into the shell to eject the same.. This ejecting rod 230is reciprocated back and forth 4in its proper timed relation from themasteroperating lever 56 `barz2l2. This'. allows the upright'bar to andthe operating mechanism therefore isof a novel construction. a swingingoperating lever 232,- which lever Vis rockably mounted adjacent to itslower end on a suitable pivot pin 233 carried by the The extreme upperend of the The same embodies' wat l shell ejecting rod 230 byV means vofa pin and slot connection 234. Pivotally connected to the lever 232above `the pivot point233there-A of, as at 235, is a rearwardlyextending operatingV link 236 having a hook 237 formed on its rear end.Pivotally connected to the eX-` treme lower Vend of the operating lever232 below itsvpivot-233 is a second operating orV return link 238,the'rear endvof which is provided with a hook 239. These hooks areadapted to engage-at certain proper times a laterally extending lug 240,carried by the reciprocating bar 241 which extends Jlongitudinally ofthe gun frame. The reciprocating bar 241 is guided-in its movement by aVsuitableY guide carried by the gun frame'and the extreme rear end ofthereciprocating bar 241 is-pivotally connected as at 242 tothe outer endof one'arm of a bell crank 243.

This bell crank 243 is rockably mounted at its angle as at 244 on apartof the gun frameand

